• Product name

  • Description

    Rabbit polyclonal to DNAJC3
  • Host species

  • Tested applications

    Suitable for: IHC-P, ICC/IF, WBmore details
  • Species reactivity

    Reacts with: Human
    Predicted to work with: Mouse, Rat, Chicken
  • Immunogen

    Synthetic peptide conjugated to KLH derived from within residues 100 - 200 of Human DNAJC3.

    Read Abcam's proprietary immunogen policy (Peptide available as ab72883.)

  • Positive control

    • This antibody gave a positive signal in the following human whole cell lysates: TE 671, Ramos, SK N BE, Hela - Staurosporine Treated (24hr, 500nM), Hela - Hydroxyurea Treated (48hr, 2uM), Jurkat - Staurosporine Treated (24hr, 500nM) and Y79.



Our Abpromise guarantee covers the use of ab70840 in the following tested applications.

The application notes include recommended starting dilutions; optimal dilutions/concentrations should be determined by the end user.

Application Abreviews Notes
IHC-P Use a concentration of 5 µg/ml. Perform heat mediated antigen retrieval before commencing with IHC staining protocol.
ICC/IF Use a concentration of 1 µg/ml.
WB Use a concentration of 1 µg/ml. Detects a band of approximately 54 kDa (predicted molecular weight: 58 kDa).


  • Function

    Involved in the unfolded protein response (UPR) during ER stress. Co-chaperone of HSPA8/HSC70, it stimulates its ATPase activity. May inhibit both the autophosphorylation of EIF2AK2/PKR and the ability of EIF2AK2 to catalyze phosphorylation of the EIF2A. May inhibit EIF2AK3/PERK activity.
  • Tissue specificity

    Widely expressed with high level in the pancreas and testis. Also expressed in cell lines with different levels.
  • Sequence similarities

    Contains 1 J domain.
    Contains 9 TPR repeats.
  • Domain

    The J domain mediates interaction with HSPA8.
  • Cellular localization

    Endoplasmic reticulum.
  • Information by UniProt
  • Database links

  • Alternative names

    • DnaJ (Hsp40) homolog subfamily C member 3 antibody
    • DnaJ homolog subfamily C member 3 antibody
    • DNAJC3 antibody
    • DNJC3_HUMAN antibody
    • double-stranded RNA-activated protein kinase inhibitor antibody
    • Endoplasmic reticulum DnaJ protein 6 antibody
    • ERdj6 antibody
    • HP58 antibody
    • Interferon induced, double stranded RNA activated protein kinase inhibitor antibody
    • Interferon-induced antibody
    • P58 antibody
    • p58 ipk antibody
    • P58IPK antibody
    • PRKRI antibody
    • Protein kinase inhibitor of 58 kDa antibody
    • Protein kinase inhibitor p58 antibody
    • Protein kinase interferon inducible double stranded RNA dependent inhibitor antibody
    see all


  • All lanes : Anti-DNAJC3 antibody (ab70840) at 1/250 dilution

    Lane 1 : TE 671 (Human Rhabdomyosarcoma) Whole Cell Lysate
    Lane 2 : Hela Whole Cell Lysate - Staurosporine Treated (24hr, 500nM)
    Lane 3 : Ramos (Human Burkitt's lymphoma cell line) Whole Cell Lysate
    Lane 4 : Hela Whole Cell Lysate - Hydroxyurea Treated (48hr, 2uM)
    Lane 5 : SK N BE (Human neuroblastoma) Whole Cell Lysate
    Lane 6 : Jurkat Whole Cell Lysate - Staurosporine Treated (24hr, 500nM)
    Lane 7 : Y79 (Human retinoblastoma cell line) Whole Cell Lysate

    Lysates/proteins at 10 µg per lane.

    All lanes : Goat polyclonal to Rabbit IgG - H&L - Pre-Adsorbed (HRP) at 1/3000 dilution

    Performed under reducing conditions.

    Predicted band size: 58 kDa
    Observed band size: 54 kDa
    why is the actual band size different from the predicted?

  • ICC/IF image of ab70840 stained HeLa cells. The cells were 100% Methanol fixed (5 min) and then incubated in 1%BSA / 10% normal Goat serum / 0.3M glycine in 0.1% PBS-Tween for 1h to permeabilise the cells and block non-specific protein-protein interactions. The cells were then incubated with the antibody (ab70840, 1µg/ml) overnight at +4°C. The secondary antibody (green) was Alexa Fluor® 488 Goat anti-Rabbit IgG (H+L) used at a 1/1000 dilution for 1h. Alexa Fluor® 594 WGA was used to label plasma membranes (red) at a 1/200 dilution for 1h. DAPI was used to stain the cell nuclei (blue) at a concentration of 1.43µM. This antibody also gave a positive result in 100% Methanol fixed (5 min) Hek293, HepG2, MCF-7 cells at 1µg/ml.
  • IHC image of ab70840 staining in human testis formalin fixed paraffin embedded tissue section, performed on a Leica BondTM system using the standard protocol F. The section was pre-treated using heat mediated antigen retrieval with sodium citrate buffer (pH6, epitope retrieval solution 1) for 20 mins. The section was then incubated with ab70840, 5µg/ml, for 15 mins at room temperature and detected using an HRP conjugated compact polymer system. DAB was used as the chromogen. The section was then counterstained with haematoxylin and mounted with DPX.

    For other IHC staining systems (automated and non-automated) customers should optimize variable parameters such as antigen retrieval conditions, primary antibody concentration and antibody incubation times.


This product has been referenced in:

  • Lin Y & Sun Z In vivo pancreatic ß-cell-specific expression of antiaging gene Klotho: a novel approach for preserving ß-cells in type 2 diabetes. Diabetes 64:1444-58 (2015). IHC . Read more (PubMed: 25377875) »
See 1 Publication for this product

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